Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/01/2024, 12:27
General
- Target F900 - VSL DESC.exe
- Size 525KB
- Sample240103-pmq6wschgr
- SHA256 1af4b1e67dee34e1ce541150c83e1be4f75766d47ecebf4b476cb08aa04fa837
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\F900 - VSL DESC.exe"C:\Users\Admin\AppData\Local\Temp\F900 - VSL DESC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/220-13-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/220-14-0x0000000005380000-0x0000000005390000-memory.dmp
memory/220-17-0x00000000063E0000-0x00000000063EA000-memory.dmp
memory/220-16-0x0000000006580000-0x0000000006742000-memory.dmp
memory/220-15-0x0000000006360000-0x00000000063B0000-memory.dmp
memory/220-8-0x0000000000400000-0x0000000000426000-memory.dmp
memory/220-11-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/220-12-0x0000000005380000-0x0000000005390000-memory.dmp
memory/2120-1-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/2120-10-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/2120-6-0x0000000005A90000-0x0000000005B2C000-memory.dmp
memory/2120-7-0x00000000058F0000-0x00000000058F8000-memory.dmp
memory/2120-0-0x0000000000DE0000-0x0000000000E6A000-memory.dmp
memory/2120-4-0x0000000005E20000-0x00000000063C4000-memory.dmp
memory/2120-5-0x0000000005950000-0x00000000059E2000-memory.dmp
memory/2120-2-0x0000000005860000-0x0000000005870000-memory.dmp
memory/2120-3-0x0000000005800000-0x0000000005854000-memory.dmp